Personally I've never been convinced that the size of the damper felts (within the parameters of whats usually available) is at all the critical issue. Nor does excessive pressure seem to be neccessary. Appropriate placement, appropriate felt density, and appropriate overall damper head mass seem to be the deteminants. Looking at the size issue alone... its easy to identify to many exceptions to any rule you can make. Cheers RicB Tvak@aol.com wrote: > > List > > I am replacing damper felts on a 1895 Kimball grand. I have noticed > that older pianos like this one often have small damper felts (maybe > 1/2 inch to 3/4 inch) situated at the ends of the damper heads with > alot of space in the middle. I suppose that the idea here is that the > smaller surface area increases the amount of downward pressure on the > string, thereby increasing the dampening power. Therefore I'm > inclined to duplicate the size and placement of the old damper felts. > > Agree/disagree? > > Then I got to thinking... > > If that rationale is true, why do most modern grands have longer > damper felts in the midrange than they do at the treble? If the > smaller area increases the amount of downward pressure, wouldn't the > opposite be more efficient, assuming that the midrange strings > generate more sustain and need more powerful damping? > > Any thoughts on this? > > Tom Sivak -- Richard Brekne RPT, N.P.T.F. UiB, Bergen, Norway mailto:rbrekne@broadpark.no http://home.broadpark.no/~rbrekne/ricmain.html http://www.hf.uib.no/grieg/personer/cv_RB.html
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